Conquer mid-distance races by wearing the Nike Zoom Rival MD 7 track spike. Made with lightweight mesh and synthetic leather, the Rival MD 7's upper keeps your feet light, cool, and dry. Dynamic midfoot bands lock the foot down, ensuring a secure fit so you can focus on speed. Responsive Phylon™ heel provides excellent protection against heel impact as the forefoot Pebax® plate delivers race-winning traction. Includes 1/4" pyramid spikes and a wrench. Wt. 4.4 oz.